Basic water heater features Residential gas overview

Anode Rod

• Whenever water is heater electrolysis happens
• When two dissimilar metals are physically connected in water, one will corrode away to protect the other
• The anode sacrifices itself to protect the interior of a glass lined tank from corrosion
• Sometimes referred to as “sacrificial rod”

• Bradford White’s Anode Rods
• Magnesium anode rods are standard; more reactive when compared to aluminum
• Aluminum anode rods are used in applications where the water has a sulfur or “rotten egg smell”. Typically well water applications.
• A420 aluminum alloy anode rods help eliminate the “rotten egg smell” and a better alternative in water softening systems.

Drain Valve

• Allows contractor or homeowner to drain their water heater
• In some cases, draining the water heater allows the contractor to service the water heater
• The removal of sediment can also be done through the drain valve

• Bradford White’s
• Low Restriction Brass Drain Valve
• Durable and tamper proof low restriction brass drain valve offers faster tank draining and reduced service time
• Features a ball valve, nickel-plated brass body, and straight design for ease of hose hookup
• Standard on gas models

• http://www.bradfordwhite.com/flushing-water-heater-110
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• http://www.bradfordwhite.com/rusty-water-117
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• http://www.bradfordwhite.com/hydrogen-sulfide-odor-and-chlorinating-water-heaters-109

• Atmospheric Vent

• Venting using B-Vent, Chimney Vent
• Uses internal air for combustion
• Standing Pilot, no electricity required

• Power Vent

• Uses internal air for combustion
• Electronic ignition, electricity is required
• Venting using PVC, ABS or CPVC pipe
• Some models have additional side connections and higher BTU/h input for small amounts of hydronic/space heating

• Dip Tube

• Dielectric Water Connections

• Standard Electric Water Heater Features

• Anode Rod

• Glass Lining

• Heat Traps

• T&P Valve

• Drain Valve

• Elements

• Thermostats

• Junction Box